Question

Trapezoid RSTU is shown on the coordinate grid below.Trapezoid RSTU will be reflected over the x-axis to create trapezoid R’S’T’U’. What will be the coordinate of point R’, the image of point R after the reflection

Answer 1

The given trapezoid RSTU is reflected over x axis;

When a point is reflected across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite sign.

i.e. ( x, y ) → (x, -y )

In the given image, the coordinates of R is R(-4, 5)

Here, x = -4 and y = 5

Since, x will be same

and y will change its sign, thus y = - (5)

i.e. y = -5

So, coordinates of R after reflected across x axis is (-4, -5)

Answer : (-4, -5)